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The Speaker Company TTP 248M service manual

Models: TTP 248M

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Troubleshooting Specifications Reset Circuit Connector Circuits Diagnosis Operation Procedure Update History

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TTP-248M Bar Code Printer Service Manual

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The Speaker Company TTP 248M service manual

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Contents

TTP 248M Table of Content TTP-248M Bar Code Printer TTP-248M Bar Code Printer Foundamentals about the System Printer Overview TTP-248M Bar Code Printer Pinter Specification Specification Communication Interface Available Bar Codes Text Specification File Head of Font Fixed 32bytes BF3~4 VF3~4 Specification Types of Paper TTP-248M Bar Code Printer Ribbon Specification Circuit Description MCU MCU MCU PIN Description Page Page Page Page Page Page Page Page TTP-248M Bar Code Printer Reset Circuit Reset Circuit TTP-248M Bar Code Printer Memory System Etro N Tech Decoder Circuits Memory Address Map Use by CPU Area Internal I/O Sdram TTP-248M Bar Code Printer Firmware Address Map TTP-248M Bar Code Printer Power Down Sensor VCC TTP-248M Bar Code Printer Print Head GND Motor System Circuit Stepping Motor Pattern TTP-248M Bar Code Printer Sensor Circuits Ribbon Near End Sensor 10 Black mark/ Gap Sensor Circuit Peel-off Sensor 11 Peel-off Sensor Circuit Case Sensor Serial Port Circuit GND VDD Parallel Port Circuit VDD TTP-248M Bar Code Printer Cutter Drive System 17 Cutter Drive Circuit TTP-248M Bar Code Printer PIN Switch Circuits Connector Circuits 21 Memory Card Connector 23 Stepping Motor Connector TTP-248M Bar Code Printer Optional Items Circuits Optional Item---Buzzer Machanism Remove the Covers and LCD Panel Loosen the three screws on Top Left Side Cover Screw LCD Panel Lower Front Cover TTP-248M Bar Code Printer Replacing the Mainboard TTP-248M Bar Code Printer Replacing the Power Supply Unit Belt Ring of Label Rewind Spindle Remove the E-ring of pulley. And then, remove the pulley TTP-248M Bar Code Printer TTP-248M Bar Code Printer Replacing Ribbon Supply Spindle TTP-248M Bar Code Printer TTP-248M Bar Code Printer Replacing Label Supply Spindle TTP-248M Bar Code Printer TTP-248M Bar Code Printer Replacing Label Rewind Spindle TTP-248M Bar Code Printer TTP-248M Bar Code Printer Replacing Platen Remove the Platen and Left Shaft Bearing TTP-248M Bar Code Printer Replacing Motor TTP-248M Bar Code Printer TTP-248M Bar Code Printer Replacing Print Head Remove the 2 screws these are on the TPH switch plate Remove A.B.C.D in order Loosen M4 screw, knob E and F TTP-248M Bar Code Printer Replacing Gap/Black Mark Sensor TTP-248M Bar Code Printer Reassemble in the reverse procedures after replacing Curly plastic pipe Screws Troubleshooting Troubleshooting Calibrate Gap/Black Mark Sensor Flash / Dram Dram Clear Diagnosis Operation ProcedureTTP-248M Bar Code Printer Self-test TTP-248M Bar Code Printer Cleaning Print Head Update History No.35, Sec , Ligong 1st Rd., Wujie Township

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